1# Copyright (c) 2007 The Hewlett-Packard Development Company 2# All rights reserved. 3# 4# Redistribution and use of this software in source and binary forms, 5# with or without modification, are permitted provided that the 6# following conditions are met: 7# 8# The software must be used only for Non-Commercial Use which means any 9# use which is NOT directed to receiving any direct monetary 10# compensation for, or commercial advantage from such use. Illustrative 11# examples of non-commercial use are academic research, personal study, 12# teaching, education and corporate research & development. 13# Illustrative examples of commercial use are distributing products for 14# commercial advantage and providing services using the software for 15# commercial advantage. 16# 17# If you wish to use this software or functionality therein that may be 18# covered by patents for commercial use, please contact: 19# Director of Intellectual Property Licensing 20# Office of Strategy and Technology 21# Hewlett-Packard Company 22# 1501 Page Mill Road 23# Palo Alto, California 94304 24# 25# Redistributions of source code must retain the above copyright notice, 26# this list of conditions and the following disclaimer. Redistributions 27# in binary form must reproduce the above copyright notice, this list of 28# conditions and the following disclaimer in the documentation and/or 29# other materials provided with the distribution. Neither the name of 30# the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 31# contributors may be used to endorse or promote products derived from 32# this software without specific prior written permission. No right of 33# sublicense is granted herewith. Derivatives of the software and 34# output created using the software may be prepared, but only for 35# Non-Commercial Uses. Derivatives of the software may be shared with 36# others provided: (i) the others agree to abide by the list of 37# conditions herein which includes the Non-Commercial Use restrictions; 38# and (ii) such Derivatives of the software include the above copyright 39# notice to acknowledge the contribution from this software where 40# applicable, this list of conditions and the disclaimer below. 41# 42# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 43# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 44# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 45# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 46# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 47# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 48# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 49# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 50# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 51# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 52# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 53# 54# Authors: Gabe Black 55 56microcode = ''' 57 58# All the memory versions need to use LOCK, regardless of if it was set 59 60def macroop XCHG_R_R 61{ 62 # Use the xor trick instead of moves to reduce register pressure. 63 # This probably doesn't make much of a difference, but it's easy. 64 xor reg, reg, regm 65 xor regm, regm, reg 66 xor reg, reg, regm 67}; 68 69def macroop XCHG_R_M 70{
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71 ld t1, seg, sib, disp
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71 ldst t1, seg, sib, disp |
72 st reg, seg, sib, disp 73 mov reg, reg, t1 74}; 75 76def macroop XCHG_R_P 77{ 78 rdip t7
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79 ld t1, seg, riprel, disp
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79 ldst t1, seg, riprel, disp |
80 st reg, seg, riprel, disp 81 mov reg, reg, t1 82}; 83 84def macroop XCHG_M_R 85{
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86 ld t1, seg, sib, disp
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86 ldst t1, seg, sib, disp |
87 st reg, seg, sib, disp 88 mov reg, reg, t1 89}; 90 91def macroop XCHG_P_R 92{ 93 rdip t7
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94 ld t1, seg, riprel, disp
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94 ldst t1, seg, riprel, disp |
95 st reg, seg, riprel, disp 96 mov reg, reg, t1 97}; 98'''
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